export const backtopProps = {
  visibilityHeight:{
    type:Number,
    default: 200
  },
  target:{
    type:String,
    default:''
  },
  right:{
    type:Number,
    default: 40
  },
  bottom:{
    type:Number,
    default: 40
  }
} as const

interface ExtractPropTypes<T> {
}

export type BacktopProps = ExtractPropTypes<typeof backtopProps>

export const backtopEmits = {
  click:(evt:MouseEvent)=>evt instanceof MouseEvent,
}
export type BacktopEmits = typeof backtopEmits
